Formulaic solutions to mathematical problems; - Training Enrollment Network

Formulaic solutions to mathematical problems;

2. Building area:15×12 =180m2.

Guardrail length: (15+ 12)×2=54 (m)

3.4×5=20 (square meter) =2000 (square decimeter)

2000÷(2×2)=500 (block) 500×5=2500 yuan.

2000÷( 1× 1)=2000 (block) 2000×3=6000 yuan.

Answer: The cheap brick with a side length of 2 cents costs 500 square bricks.

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